What is iron?
Iron is known to mankind since time immemorial. The first mentions of this metal date back to the fourth millennium BC. Thus, iron products were found in the ancient Egyptian pyramids. A few centuries later in ancient Rome, people already knew pretty well what iron was, knew how to smelt and process it for the production of steel and cast iron using a furnace and a forge. To date, the technology of production of iron has not changed. Iron in the modern world is used everywhere: in construction, in the manufacture of weapons, vehicles, household products.
Iron in chemistry
In the chemical system of Mendeleev, iron is an element of the eighth group of the fourth period. The atomic mass of iron is equal to 26. Chemists characterize iron as a silver-white ductile metal. Iron has a pronounced ability to interact with other chemical elements, therefore, with a certain humidity and the presence of oxygen in the air, iron changes rapidly.
Iron in geology
In geology and geochemistry, it is believed that iron is the most common element in the solar system, in particular, on planet Earth. For example, the cores of planets are 90% made of this metal.Iron is also widespread in the earth's crust. It ranks second among other metals in content in rocks. This is what makes it possible to extract and process iron everywhere.
In industry, the hematite and magnetite minerals are the main sources of iron. It should be noted that pure iron is rarely used for production. Most commonly used are various alloys, which include both iron and other elements. Read more about this here.
Iron in the human body
The human body can not fully function without iron. In the body of an adult, the iron content is 3-5 g. Most of the metal is in the blood, a third in the liver, and a small amount of iron is in the spleen, muscles and bone marrow.
Iron performs several functions in the human body. First of all, it is the storage and transport of oxygen. So, iron is a part of hemoglobin, each molecule of which contains 4 iron atoms. It is hemoglobin that binds oxygen molecules and delivers it to the tissues and organs. In addition, iron is involved in metabolism.So, it helps to destroy harmful substances in the liver, is involved in the exchange of cholesterol, the process of blood formation.
Iron as part of food
The body should receive a small portion of iron daily. Iron as a trace element contained in products is necessary for the body to grow, maintain immunity and restore muscle tone. Also, iron helps relieve fatigue, up to anemia. In this article, you can read what products contain iron.
If you ask a person who does computers what iron is, he will most likely begin to list the details of the computer. Indeed, in a computer environment, hardware means various physical components of a computer: what can be changed, broken, or touched. You can read about computer hardware in one of our articles.
Iron in the gym
About iron can be heard from people who are engaged in the gym. Many bodybuilders call various sports equipment, projectiles, such as weights, dumbbells or “pancakes” for a barbell, with iron.
Now you know what iron is.Obviously, this metal is very closely related to human life. There is a whole epoch in history in which iron was a key factor in the development of mankind — the Iron Age. Today, the value of iron has significantly decreased, as people have learned how to make artificial polymers, which sometimes exceed iron in their parameters. But, anyway, the importance of iron for a person is indisputable.